Sulfonate improves water solubility and cell selective toxicity and alters the lysozyme binding activity of half sandwich Rh(iii) complexes

2021 ◽  
Author(s):  
Ahmed M. Mansour ◽  
Krzysztof Radacki ◽  
Ola R. Shehab
Keyword(s):  
Sulfonic Acid ◽  
Water Solubility ◽  
Acid Group ◽  
Binding Activity ◽  
Water Soluble ◽  
Sulfonic Acid Group ◽  
Soluble Complex ◽  
Selective Toxicity ◽  
Half Sandwich ◽  
Water Soluble Complex

Introduction of the propyl-sulfonic acid group at N1 of the coordinated 2(pyridyl)benzimidazole ligand (L) in [RhCl(η5-C5Me5)L](CF3SO3) gives rise to a water-soluble complex, which shows comparable antifungal activity to Fluconazole.

Preparation and polymerization of isopropenyl-1,3,5-triazine containing sulfonic acid group.

1986 ◽  
Vol 43 (9) ◽  
pp. 573-579
Author(s):  
Yasuo YUKI ◽  
Hideo KUNISADA ◽  
Tomohiko NOMURA
Keyword(s):  
Sulfonic Acid ◽  
Acid Group ◽  
Sulfonic Acid Group

A STUDY OF A WATER-SOLUBLE COMPLEX OF PRODIGIOSIN PRODUCED BY A STRAIN OF SERRATIA MARCESCENS

1962 ◽  
Vol 40 (1) ◽  
pp. 1019-1024 ◽  
Author(s):  
Seiichi Yoshida
Keyword(s):  
Molecular Weight ◽  
Light Scattering ◽  
Serratia Marcescens ◽  
Average Molecular Weight ◽  
Electrophoretic Analysis ◽  
Water Soluble ◽  
Soluble Complex ◽  
Ph Values ◽  
Scattering Measurements ◽  
Water Soluble Complex

A water-soluble pigment excreted from Serratia marcescens has been purified by precipitation with ammonium sulphate, dialysis, and ultracentrifugation at different pH values. The purified pigment showed a single band in the ultracentrifuge and by electrophoretic analysis at several pH values. An average molecular weight of 5 × 106 was calculated from light-scattering measurements. This pigment is composed of carbohydrate and protein combined with prodigiosin, and several properties of the complex are described.

Sulfonic Acid Group Determination in Lignosulfonates by Headspace Gas Chromatography

2018 ◽  
Vol 6 (5) ◽  
pp. 6240-6246 ◽  
Author(s):  
Philipp Korntner ◽  
Andreas Schedl ◽  
Ivan Sumerskii ◽  
Thomas Zweckmair ◽  
Arnulf Kai Mahler ◽  
...  
Keyword(s):  
Gas Chromatography ◽  
Sulfonic Acid ◽  
Acid Group ◽  
Headspace Gas Chromatography ◽  
Sulfonic Acid Group ◽  
Headspace Gas

Subsidiary Colors in FD&C Blue No. 1

1969 ◽  
Vol 52 (1) ◽  
pp. 34-40 ◽  
Author(s):  
Charles Stein
Keyword(s):  
Thin Layer ◽  
Thin Layer Chromatography ◽  
Sulfonic Acid ◽  
Acid Group ◽  
Sulfonic Acid Group ◽  
Layer Chromatography

Abstract The subsidiary colors in commercial FD&C Blue No. 1 have been identified by thin layer chromatography. They consist of dyes formed by the loss of one sulfonic acid group or of one sulfonated benzyl group from FD&C Blue No. 1.

A STUDY OF A WATER-SOLUBLE COMPLEX OF PRODIGIOSIN PRODUCED BY A STRAIN OF SERRATIA MARCESCENS

1962 ◽  
Vol 40 (8) ◽  
pp. 1019-1024 ◽  
Author(s):  
Seiichi Yoshida
Keyword(s):  
Molecular Weight ◽  
Light Scattering ◽  
Serratia Marcescens ◽  
Average Molecular Weight ◽  
Electrophoretic Analysis ◽  
Water Soluble ◽  
Soluble Complex ◽  
Ph Values ◽  
Scattering Measurements ◽  
Water Soluble Complex

A water-soluble pigment excreted from Serratia marcescens has been purified by precipitation with ammonium sulphate, dialysis, and ultracentrifugation at different pH values. The purified pigment showed a single band in the ultracentrifuge and by electrophoretic analysis at several pH values. An average molecular weight of 5 × 106 was calculated from light-scattering measurements. This pigment is composed of carbohydrate and protein combined with prodigiosin, and several properties of the complex are described.

Reactions of SO2X mono-substituted arenes with SO3 in nitromethane: electronic and steric directing effects of the sulfonic acid group and some model substituents

1993 ◽  
Vol 71 (2) ◽  
pp. 210-215 ◽  
Author(s):  
Harold R. W. Ansink ◽  
Erik J. De Graaf ◽  
Erwin Zelvelder ◽  
Hans Cerfontain
Keyword(s):  
Sulfonic Acid ◽  
Sulfur Trioxide ◽  
Reaction Rates ◽  
Acid Group ◽  
Sulfonic Acid Group ◽  
Order Of Magnitude ◽  
Directing Effect ◽  
Naphthalene Series ◽  
Benzene Series

The sulfonation of benzene-SO2X (X = CH3, OCH3, OH, and Cl) and of 1- and 2-naphthalene-SO2X (X = CH3, OCH3, and Cl) with sulfur trioxide in nitromethane as solvent has been studied. In the benzene series, substitution only occurs at the 3-position irrespective of X; the reaction rates, which are all within the same order of magnitude, are low. Upon sulfonation of the 1-SO2X-substituted naphthalenes, the main sulfonation product (58–80%) is the 5-sulfonic acid (5-S); in addition, 6-S and small amounts of 3-S and 7-S are formed. Also, the formation of the intermolecular sulfonic anhydride of 1-(methylsulfonyl)naphthalene-5-S is observed. The 2-SO2X-substituted naphthalenes all yield the 5-S and 8-S in a ratio of [Formula: see text] For both the benzene and naphthalene series, insertion of SO3 between the SO2 and X moieties of the chlorosulfonyl and methoxysulfonyl substituents proper takes place. In the benzene series these reactions are fast as compared with the actual ring sulfonation, whereas in the naphthalene series they are, in general, relatively slow. In the naphthalene series the mesomeric directing effect of the SO2X groups is less important than in the benzene series; the "naphthalene α-effect" also plays an important role.

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